The MIT Police and the Department of Facilities on Saturday confiscated two student-built rafts that were used July 4 by East Campus residents to sail in the Charles River, following a protracted and acrimonious debate about the safety of a previous version of one of the rafts, students and administrators say.

Starting this fall, new and replacement cards will be embedded with chips that will be able to be read by readers a few inches away, allowing students and staff to “hip-check” readers to open some doors.

Following the war, he was the Chief of the Division of German and Austrian Economic Affairs, headed a committee that prepared cost estimates for the Marshall Plan, and was a key advisor on German reparations. He then joined the MIT Department of Economics in 1948.

MIT and the Whitehead Institute for Biomedical Research will join with Harvard and several of its affiliated hospitals in creating, with the help of a $100 million dollar gift, the Eli and Edythe Broad Institute.